TwinTurbo.NET: Nissan 300ZX forum - Lets really look at those two charts.......
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Subject Lets really look at those two charts.......
     
Posted by Greg D. (Specialty-Z) on February 06, 2011 at 12:20 AM
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In Reply To Regretting the lightweight flywheel... posted by kurry89 on February 05, 2011 at 02:18 PM
     
Message As others have pointed out they are different types of dyno's. Something that would be helpful that your missing on the first chart is your boost and A/F.
Your first chart looks like a boost spike.
Other than the boost spike your new dyno shows better torque in every other area and your making significantly more HP on the new one as well.
Lets look at each RPM without looking at the spike on the old graph.

3000 RPM old 225 torque
3000RPM New 290 torque

3500RPM old 285 torque
3500RPM new 325 torque

5250RPM old 300 torque
5250RPM new 320 torque

6000RPM old 255 torque
6000RPM new 280 torque

Yes you have higher *PEAK* torque for 300 RPM in your old dyno.
We could turn the gain up on your boost controller and give you a boost spike that will show the same kind of torque spike, but we tuned your boost controller to have a smooth boost curve so that it would not detonate.
It is funny how people can look at one peak number and not notice the whole curve.
Dyno number 2 would be a much faster car.
For the mods you have with stock intercoolers, I would say you have a very strong car.
As for the flywheel……Dropping crank weight can only free up power. Just changing the flywheel is about a 20HP increase.
Your old HP was 302 Peak and your new HP is 333 Peak.
Please feel free to call me with any concerns.

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